The black and white one is my kitty Yuki!
The orange one is DG's kitty Monty!
I'm not obsessed with these homicidal expression, it just happened to have suited the idea. . .
Well, Monty is an outdoor cat who apparently enjoys eating Mice... Yuki on the other hand is an indoor cat who has yet to see a mouse (to my knowledge). I can somehow imagine Yuki playing the mouse to death before he goes on to tortures another, not sure if he'd eat it though... O.o